Добавлена ролевая модель

Reviewed-on: L_DelOff/ServerMonitorBot#23

pom.xml

@@ -47,8 +47,18 @@
             <artifactId>jsch</artifactId>
             <version>0.1.55</version>
         </dependency>
-
-
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.liquibase</groupId>
+            <artifactId>liquibase-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

src/main/java/ru/ldeloff/servermonitorbot/config/SshConfig.java

@@ -1,5 +1,8 @@
 package ru.ldeloff.servermonitorbot.config;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.Setter;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.context.annotation.Configuration;
 import ru.ldeloff.servermonitorbot.model.SshServer;
@@ -8,14 +11,8 @@ import java.util.List;
 
 @Configuration
 @ConfigurationProperties(prefix = "ssh")
+@Getter
+@Setter
 public class SshConfig {
     private List<SshServer> servers;
-
-    public List<SshServer> getServers() {
-        return servers;
-    }
-
-    public void setServers(List<SshServer> servers) {
-        this.servers = servers;
-    }
 }

src/main/java/ru/ldeloff/servermonitorbot/config/UserConfig.java

@@ -0,0 +1,17 @@
+package ru.ldeloff.servermonitorbot.config;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Configuration;
+import ru.ldeloff.servermonitorbot.model.dto.InitUserDto;
+
+import java.util.List;
+
+@Configuration
+@ConfigurationProperties(prefix = "bot")
+@Getter
+@Setter
+public class UserConfig {
+    private List<InitUserDto> users;
+}

src/main/java/ru/ldeloff/servermonitorbot/controller/TelegramBotController.java

@@ -7,9 +7,13 @@ import org.telegram.telegrambots.bots.TelegramLongPollingBot;
 import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
 import org.telegram.telegrambots.meta.api.objects.Update;
 import org.telegram.telegrambots.meta.exceptions.TelegramApiException;
+import ru.ldeloff.servermonitorbot.model.Role;
 import ru.ldeloff.servermonitorbot.model.TelegramBot;
+import ru.ldeloff.servermonitorbot.model.User;
 import ru.ldeloff.servermonitorbot.repository.SshRepository;
 import ru.ldeloff.servermonitorbot.service.TelegramBotService;
+import ru.ldeloff.servermonitorbot.service.role.RoleService;
+import ru.ldeloff.servermonitorbot.service.user.UserService;
 import ru.ldeloff.servermonitorbot.utils.ui.TelegramBotKeyboard;
 import ru.ldeloff.servermonitorbot.utils.ui.uname.UnameChatButtonAggregate;
 
@@ -20,31 +24,68 @@ public class TelegramBotController extends TelegramLongPollingBot {
 
     final TelegramBot telegramBot;
     final SshRepository sshRepository;
-    final TelegramBotKeyboard telegramBotKeyboard;
-    final UnameChatButtonAggregate unameChatButtonAggregate;
     final TelegramBotService telegramBotService;
+    final UserService userService;
+    final RoleService roleService;
 
     @Override
     public void onUpdateReceived(Update update) {
+        Role role = getRole(update);
         if (update.hasMessage()) {
             if (update.getMessage().hasText()) {
                 String messageText = update.getMessage().getText();
                 switch (messageText) {
                     case "/start" -> {
-                        log.info("Получена команда /start");
+                        if (role.getId() < 3) {
+                            log.info("Получена команда '" + messageText
+                                    + "' от " + update.getMessage().getChat().getUserName()
+                                    + " (" + update.getMessage().getChat().getId() + "). OK");
                             telegramBotService.firstUse(update, this);
+                        } else {
+                            log.warn("Получена команда '" + messageText
+                                    + "' от " + update.getMessage().getChat().getUserName()
+                                    + " (" + update.getMessage().getChat().getId() + "). Нет прав");
+                            telegramBotService.notAuthorization(update, this);
+                        }
                     }
                     case "Статус" -> {
-                        log.info("Получена команда 'Статус'");
+                        if (role.getId() < 3) {
+                            log.info("Получена команда '" + messageText
+                                    + "' от " + update.getMessage().getChat().getUserName()
+                                    + " (" + update.getMessage().getChat().getId() + "). OK");
                             telegramBotService.getStatusSessions(update, this);
+                        } else {
+                            log.warn("Получена команда '" + messageText
+                                    + "' от " + update.getMessage().getChat().getUserName()
+                                    + " (" + update.getMessage().getChat().getId() + "). Нет прав");
+                            telegramBotService.notAuthorization(update, this);
+                        }
                     }
                     case "uname" -> {
-                        log.info("Получена команда 'uname'");
+                        if (role.getId() < 3) {
+                            log.info("Получена команда '" + messageText
+                                    + "' от " + update.getMessage().getChat().getUserName()
+                                    + " (" + update.getMessage().getChat().getId() + "). OK");
                             telegramBotService.sendUnameAggregate(update, this);
+                        } else {
+                            log.warn("Получена команда '" + messageText
+                                    + "' от " + update.getMessage().getChat().getUserName()
+                                    + " (" + update.getMessage().getChat().getId() + "). Нет прав");
+                            telegramBotService.notAuthorization(update, this);
+                        }
                     }
                     default -> {
-                        log.warn("Неизвестная команда:" + messageText);
+                        if (role.getId() < 3) {
+                            log.warn("Неизвестная команда '" + messageText
+                                    + "' от " + update.getMessage().getChat().getUserName()
+                                    + " (" + update.getMessage().getChat().getId() + "). ОК");
                             telegramBotService.switchToMainMenu(update, this);
+                        } else {
+                            log.warn("Неизвестная команда '" + messageText
+                                    + "' от " + update.getMessage().getChat().getUserName()
+                                    + " (" + update.getMessage().getChat().getId() + "). Нет прав");
+                            telegramBotService.notAuthorization(update, this);
+                        }
                     }
                 }
             }
@@ -54,17 +95,44 @@ public class TelegramBotController extends TelegramLongPollingBot {
             if (tags.length > 1) {
                 switch (tags[0]) {
                     case "uname":
-                        log.info("Получена команда '" + messageText + "'");
+                        if (role.getId() < 3) {
+                            log.info("Получена команда '" + messageText
+                                    + "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+                                    + " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). ОК");
                             telegramBotService.uname(update, this);
+                        } else {
+                            log.info("Получена команда '" + messageText
+                                    + "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+                                    + " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). Нет прав");
+                            telegramBotService.notAuthorization(update, this);
+                        }
                         break;
                     default:
-                        log.warn("Неизвестная команда:" + messageText);
+                        if (role.getId() < 3) {
+                            log.warn("Неизвестная команда '" + messageText
+                                    + "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+                                    + " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). ОК");
                             telegramBotService.switchToMainMenu(update, this);
+                        } else {
+                            log.warn("Неизвестная команда '" + messageText
+                                    + "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+                                    + " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). Нет прав");
+                            telegramBotService.notAuthorization(update, this);
+                        }
                         break;
                 }
             } else {
-                    log.warn("Неверный формат команды:" + messageText);
+                if (role.getId() < 3) {
+                    log.warn("Неверный формат команды '" + messageText
+                            + "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+                            + " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). ОК");
                     telegramBotService.switchToMainMenu(update, this);
+                } else {
+                    log.warn("Неверный формат команды '" + messageText
+                            + "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+                            + " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). Нет прав");
+                    telegramBotService.notAuthorization(update, this);
+                }
             }
         }
     }
@@ -84,4 +152,19 @@ public class TelegramBotController extends TelegramLongPollingBot {
         super.onClosing();
         sshRepository.disconnectSessions();
     }
+
+    private Role getRole(Update update) {
+        Long id = null;
+        if (update.hasMessage()) {
+            id = update.getMessage().getChat().getId();            
+        } else if (update.hasCallbackQuery()) {
+            id = update.getCallbackQuery().getMessage().getChat().getId();
+        }
+        User user = userService.getByTelegramId(id);
+        if (user == null) {
+            return roleService.findRoleById(3L);
+        } else {
+            return user.getRole();
+        }
+    }
 }

src/main/java/ru/ldeloff/servermonitorbot/init/AddUsers.java

@@ -0,0 +1,34 @@
+package ru.ldeloff.servermonitorbot.init;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
+import org.springframework.stereotype.Component;
+import ru.ldeloff.servermonitorbot.config.UserConfig;
+import ru.ldeloff.servermonitorbot.mapper.UserMapper;
+import ru.ldeloff.servermonitorbot.model.User;
+import ru.ldeloff.servermonitorbot.model.dto.InitUserDto;
+import ru.ldeloff.servermonitorbot.service.user.UserService;
+
+import java.util.List;
+
+@Component
+public class AddUsers implements ApplicationRunner {
+    final List<InitUserDto> initUsers;
+    final UserService userService;
+    final UserMapper userMapper;
+
+    @Autowired
+    public AddUsers(UserConfig userConfig, UserService userService, UserMapper userMapper) {
+        this.initUsers = userConfig.getUsers();
+        this.userService = userService;
+        this.userMapper = userMapper;
+    }
+
+    @Override
+    public void run(ApplicationArguments args) throws Exception {
+        initUsers.forEach(initUserDto -> {
+            User user = userService.saveOrUpdateUser(userMapper.dtoToUser(initUserDto));
+        });
+    }
+}

src/main/java/ru/ldeloff/servermonitorbot/mapper/UserMapper.java

@@ -0,0 +1,22 @@
+package ru.ldeloff.servermonitorbot.mapper;
+
+import org.springframework.stereotype.Component;
+import ru.ldeloff.servermonitorbot.model.User;
+import ru.ldeloff.servermonitorbot.model.dto.InitUserDto;
+import ru.ldeloff.servermonitorbot.service.role.RoleService;
+
+@Component
+public class UserMapper {
+    final RoleService roleService;
+
+    public UserMapper(RoleService roleService) {
+        this.roleService = roleService;
+    }
+
+    public User dtoToUser(InitUserDto initUserDto) {
+        User user = new User();
+        user.setTelegramId(initUserDto.getTelegramId());
+        user.setRole(roleService.findRoleByName(initUserDto.getRole()));
+        return user;
+    }
+}

src/main/java/ru/ldeloff/servermonitorbot/model/Command.java

@@ -0,0 +1,25 @@
+package ru.ldeloff.servermonitorbot.model;
+
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotNull;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class Command {
+    @NotNull
+    private String command;
+    @NotNull
+    @Min(100)
+    private int timeout;
+    @NotNull
+    private SshServer sshServer;
+    private String response;
+
+    public Command(String command, int timeout, SshServer sshServer) {
+        this.command = command;
+        this.timeout = timeout;
+        this.sshServer = sshServer;
+    }
+}

src/main/java/ru/ldeloff/servermonitorbot/model/Role.java

@@ -0,0 +1,17 @@
+package ru.ldeloff.servermonitorbot.model;
+
+import jakarta.persistence.*;
+import lombok.Data;
+
+@Entity
+@Data
+@Table(name = "roles")
+public class Role {
+    @Id
+    @Column(name = "id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+
+    @Column(name = "name")
+    private String name;
+}

src/main/java/ru/ldeloff/servermonitorbot/model/User.java

@@ -0,0 +1,21 @@
+package ru.ldeloff.servermonitorbot.model;
+
+import jakarta.persistence.*;
+import lombok.Data;
+
+@Entity
+@Data
+@Table(name = "users")
+public class User {
+    @Id
+    @Column(name = "id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(name = "telegram_id")
+    private Long telegramId;
+
+    @ManyToOne
+    @JoinColumn(name = "role_id")
+    private Role role;
+}

src/main/java/ru/ldeloff/servermonitorbot/model/dto/InitUserDto.java

@@ -0,0 +1,14 @@
+package ru.ldeloff.servermonitorbot.model.dto;
+
+import jakarta.validation.constraints.NotNull;
+import lombok.Data;
+import org.springframework.stereotype.Component;
+
+@Data
+@Component
+public class InitUserDto {
+    @NotNull
+    private long telegramId;
+    @NotNull
+    private String role;
+}

src/main/java/ru/ldeloff/servermonitorbot/repository/RoleRepository.java

@@ -0,0 +1,13 @@
+package ru.ldeloff.servermonitorbot.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+import ru.ldeloff.servermonitorbot.model.Role;
+
+import java.util.Optional;
+
+@Repository
+public interface RoleRepository extends JpaRepository<Role, Long> {
+    Optional<Role> findRoleByName(String name);
+    Optional<Role> findRoleById(Long id);
+}

src/main/java/ru/ldeloff/servermonitorbot/repository/SshRepositoryImpl.java

@@ -12,6 +12,7 @@ import ru.ldeloff.servermonitorbot.model.SshServer;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 @Slf4j
 @Repository
@@ -65,7 +66,7 @@ public class SshRepositoryImpl implements SshRepository {
         sshServers.forEach(server -> {
             text.append(server.getName())
                     .append(": ")
-                    .append(server.getSession().isConnected() ? "OK" : "отключён")
+                    .append(checkStatusServer(server))
                     .append("\n");
         });
         return String.valueOf(text);
@@ -75,4 +76,13 @@ public class SshRepositoryImpl implements SshRepository {
     public List<SshServer> getSshServers() {
         return sshServers;
     }
+
+    private String checkStatusServer(SshServer server) {
+        if (Objects.isNull(server.getSession())) {
+            return "нет соединения";
+        } else {
+            return server.getSession().isConnected() ? "OK" : "отключён";
+        }
+    }
+
 }

src/main/java/ru/ldeloff/servermonitorbot/repository/UserRepository.java

@@ -0,0 +1,10 @@
+package ru.ldeloff.servermonitorbot.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+import ru.ldeloff.servermonitorbot.model.User;
+
+@Repository
+public interface UserRepository extends JpaRepository<User, Long> {
+    User getByTelegramId(long id);
+}

src/main/java/ru/ldeloff/servermonitorbot/service/TelegramBotService.java

@@ -9,5 +9,6 @@ public interface TelegramBotService {
     void getStatusSessions(Update update, TelegramBotController bot);
     void sendUnameAggregate(Update update, TelegramBotController bot);
     void uname(Update update, TelegramBotController bot);
-    void firstUse(Update update, TelegramBotController telegramBotController);
+    void firstUse(Update update, TelegramBotController bot);
+    void notAuthorization(Update update, TelegramBotController bot);
 }

src/main/java/ru/ldeloff/servermonitorbot/service/TelegramBotServiceImpl.java

@@ -27,10 +27,32 @@ public class TelegramBotServiceImpl implements TelegramBotService {
         SendMessage message = new SendMessage();
         long chatId = 0L;
         chatId = update.getMessage().getChatId();
-        message.setText("Добро пожалвать " + update.getMessage().getChat().getUserName() + "!");
+        message.setText("Добро пожаловать " + update.getMessage().getChat().getUserName() + "!");
         message.setChatId(chatId);
         sendMessage(telegramBotKeyboard.uiForm(message), bot);
     }
+
+    @Override
+    public void notAuthorization(Update update, TelegramBotController bot) {
+        long id = 0L;
+        String login = null;
+        long chatId = 0L;
+        if (update.hasMessage()) {
+            id = update.getMessage().getChat().getId();
+            login = update.getMessage().getChat().getUserName();
+            chatId = update.getMessage().getChatId();
+        } else if (update.hasCallbackQuery()) {
+            id = update.getCallbackQuery().getMessage().getChat().getId();
+            login = update.getCallbackQuery().getMessage().getChat().getUserName();
+            chatId = update.getCallbackQuery().getMessage().getChatId();
+        }
+        SendMessage message = new SendMessage();
+        message.setText("У пользователя " + login
+                + " (" + id + ") недостаточно прав для выполнения этой команды");
+        message.setChatId(chatId);
+        sendMessage(message, bot);
+    }
+
     @Override
     public void switchToMainMenu(Update update, TelegramBotController bot) {
         SendMessage message = new SendMessage();

src/main/java/ru/ldeloff/servermonitorbot/service/role/RoleService.java

@@ -0,0 +1,9 @@
+package ru.ldeloff.servermonitorbot.service.role;
+
+import ru.ldeloff.servermonitorbot.model.Role;
+
+public interface RoleService {
+    Role findRoleByName(String name);
+
+    Role findRoleById(Long id);
+}

src/main/java/ru/ldeloff/servermonitorbot/service/role/RoleServiceImpl.java

@@ -0,0 +1,28 @@
+package ru.ldeloff.servermonitorbot.service.role;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import ru.ldeloff.servermonitorbot.model.Role;
+import ru.ldeloff.servermonitorbot.repository.RoleRepository;
+
+import java.util.Locale;
+import java.util.Optional;
+
+@Service
+@RequiredArgsConstructor
+public class RoleServiceImpl implements RoleService {
+    private final RoleRepository roleRepository;
+
+    @Override
+    public Role findRoleByName(String name) {
+        Optional<Role> role = roleRepository.findRoleByName(name.toUpperCase(Locale.ROOT));
+        //noinspection OptionalGetWithoutIsPresent
+        return role.orElseGet(() -> roleRepository.findRoleByName("ANONYMOUS").get());
+    }
+
+    @Override
+    public Role findRoleById(Long id) {
+        Optional<Role> role = roleRepository.findRoleById(id);
+        return role.orElseGet(() -> roleRepository.findRoleByName("ANONYMOUS").get());
+    }
+}

src/main/java/ru/ldeloff/servermonitorbot/service/ssh/SshService.java

@@ -3,6 +3,7 @@ package ru.ldeloff.servermonitorbot.service.ssh;
 
 import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
 import org.telegram.telegrambots.meta.api.objects.Update;
+import ru.ldeloff.servermonitorbot.model.Command;
 import ru.ldeloff.servermonitorbot.model.SshServer;
 
 import java.util.List;
@@ -10,7 +11,6 @@ import java.util.List;
 public interface SshService {
     SendMessage getStatusSessions(Update update);
     List<SshServer> getSshServers();
-
-    String execute(String s, SshServer sshServer);
-    String execute(String s, SshServer sshServer, int timeout);
+    Command execute(Command command);
+    List<Command> execute(List<Command> commands);
 }

src/main/java/ru/ldeloff/servermonitorbot/service/ssh/SshServiceImpl.java

@@ -8,10 +8,12 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
 import org.telegram.telegrambots.meta.api.objects.Update;
+import ru.ldeloff.servermonitorbot.model.Command;
 import ru.ldeloff.servermonitorbot.model.SshServer;
 import ru.ldeloff.servermonitorbot.repository.SshRepository;
 
 import java.io.ByteArrayOutputStream;
+import java.util.ArrayList;
 import java.util.List;
 
 @Service
@@ -33,34 +35,44 @@ public class SshServiceImpl implements  SshService {
     }
 
     @Override
-    public String execute(String s, SshServer sshServer) {
-        return  execute(s, sshServer, 100);
+    public Command execute(Command command) {
+        List<Command> commands = new ArrayList<>();
+        commands.add(command);
+        return execute(commands).get(0);
     }
 
     @Override
-    public String execute(String s, SshServer sshServer, int timeout) {
-        Session session = sshServer.getSession();
+    public List<Command> execute(List<Command> commands) {
+        Session session = commands.get(0).getSshServer().getSession(); // подразумевается, что в листе с командами сервер один и тот же
         ChannelExec channel = null;
         try {
             channel = (ChannelExec) session.openChannel("exec");
-            channel.setCommand(s);
+            ChannelExec finalChannel = channel;
+
+            commands.forEach(command -> {
+                try {
+                    finalChannel.setCommand(command.getCommand());
                     ByteArrayOutputStream responseStream = new ByteArrayOutputStream();
-            channel.setOutputStream(responseStream);
-            channel.connect();
-
-            while (channel.isConnected()) {
-                Thread.sleep(timeout);
+                    finalChannel.setOutputStream(responseStream);
+                    finalChannel.connect();
+                    while (finalChannel.isConnected()) {
+                        Thread.sleep(command.getTimeout());
                     }
-
                     String responseString = new String(responseStream.toByteArray());
-            return responseString;
+                    command.setResponse(responseString);
                 } catch (JSchException | InterruptedException e) {
-            log.error(e.getMessage());
-            return null;
+                    log.warn(e.getMessage());
+                    throw new RuntimeException(e);
+                }
+            });
+        } catch (JSchException e) {
+            log.warn(e.getMessage());
+            throw new RuntimeException(e);
         } finally {
             if (channel != null) {
                 channel.disconnect();
             }
         }
+        return commands;
     }
 }

src/main/java/ru/ldeloff/servermonitorbot/service/uname/UnameServiceImpl.java

@@ -5,8 +5,10 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
 import org.telegram.telegrambots.meta.api.objects.Update;
+import ru.ldeloff.servermonitorbot.model.Command;
 import ru.ldeloff.servermonitorbot.model.SshServer;
 import ru.ldeloff.servermonitorbot.service.ssh.SshService;
+import ru.ldeloff.servermonitorbot.utils.SshServerUtils;
 import ru.ldeloff.servermonitorbot.utils.ui.uname.UnameChatButtonAggregate;
 
 import java.util.Arrays;
@@ -49,7 +51,7 @@ public class UnameServiceImpl implements UnameService {
     }
 
     private String unameAllHost() {
-       List<SshServer> servers = sshService.getSshServers();
+       List<SshServer> servers = SshServerUtils.filterGoodServers(sshService.getSshServers());
        StringBuilder response = new StringBuilder();
        servers.forEach(server -> {
            response.append(unameSpecificHost(server.getName())).append("\n");
@@ -63,9 +65,9 @@ public class UnameServiceImpl implements UnameService {
                 .filter(x -> x.getName().equals(serverName))
                 .findFirst();
         if (server.isPresent()) {
-            String result = sshService.execute("uname -a", server.get());
-            return server.get().getName() + ": " + (Objects.isNull(result) ? "ошибка при выполнении команды" : result);
-
+            Command result = sshService.execute(new Command("uname -a", 100, server.get()));
+            return server.get().getName() + ": " +
+                    (Objects.isNull(result.getResponse()) ? "ошибка при выполнении команды" : result.getResponse());
         } else {
             log.error("Ошибка при выполнении команды 'uname'. Искомый сервер (" + serverName + ") не найден");
             return null;

src/main/java/ru/ldeloff/servermonitorbot/service/user/UserService.java

@@ -0,0 +1,9 @@
+package ru.ldeloff.servermonitorbot.service.user;
+
+import ru.ldeloff.servermonitorbot.model.User;
+
+public interface UserService {
+    User saveOrUpdateUser(User user);
+
+    User getByTelegramId(Long id);
+}

src/main/java/ru/ldeloff/servermonitorbot/service/user/UserServiceImpl.java

@@ -0,0 +1,29 @@
+package ru.ldeloff.servermonitorbot.service.user;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import ru.ldeloff.servermonitorbot.model.User;
+import ru.ldeloff.servermonitorbot.repository.UserRepository;
+
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class UserServiceImpl implements UserService {
+
+    final UserRepository userRepository;
+
+    @Override
+    public User saveOrUpdateUser(User user) {
+        User existUser = userRepository.getByTelegramId(user.getTelegramId());
+        if (existUser != null) {
+            user.setId(existUser.getId());
+        }
+        return userRepository.save(user);
+    }
+
+    @Override
+    public User getByTelegramId(Long id) {
+        return userRepository.getByTelegramId(id);
+    }
+}

src/main/java/ru/ldeloff/servermonitorbot/utils/SshServerUtils.java

@@ -0,0 +1,17 @@
+package ru.ldeloff.servermonitorbot.utils;
+
+import ru.ldeloff.servermonitorbot.model.SshServer;
+
+import java.util.List;
+import java.util.Objects;
+
+public class SshServerUtils {
+    public static List<SshServer> filterGoodServers(List<SshServer> sshServers) {
+        List<SshServer> goodSshServers = sshServers.stream()
+                .filter(Objects::nonNull)
+                .filter(server -> Objects.nonNull(server.getSession()))
+                .filter(server -> server.getSession().isConnected())
+                .toList();
+        return goodSshServers;
+    }
+}

src/main/java/ru/ldeloff/servermonitorbot/utils/ui/TelegramBotKeyboard.java

@@ -17,8 +17,8 @@ public class TelegramBotKeyboard implements UiFormer {
     @Override
     public SendMessage uiForm(SendMessage message) {
         ReplyKeyboardMarkup replyKeyboardMarkup = new ReplyKeyboardMarkup();
-        replyKeyboardMarkup.setResizeKeyboard(true); //подгоняем размер
-        replyKeyboardMarkup.setOneTimeKeyboard(false); //скрываем после использования
+        replyKeyboardMarkup.setResizeKeyboard(true);
+        replyKeyboardMarkup.setOneTimeKeyboard(false);
 
         ArrayList<KeyboardRow> keyboardRows = new ArrayList<>();
 

src/main/java/ru/ldeloff/servermonitorbot/utils/ui/uname/UnameChatButtonAggregate.java

@@ -12,6 +12,7 @@ import ru.ldeloff.servermonitorbot.utils.ui.UiFormer;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 @Component
 @RequiredArgsConstructor
@@ -26,15 +27,19 @@ public class UnameChatButtonAggregate implements UiFormer {
         InlineKeyboardMarkup inlineKeyboardMarkup = new InlineKeyboardMarkup();
 
         sshService.getSshServers().forEach(sshServer -> {
+            if (Objects.nonNull(sshServer.getSession())) {
+                if (sshServer.getSession().isConnected()) {
                     List<InlineKeyboardButton> keyboardRow = new ArrayList<>();
                     InlineKeyboardButton inlineKeyboardButton = new InlineKeyboardButton();
                     inlineKeyboardButton.setText(sshServer.getName());
                     inlineKeyboardButton.setCallbackData("uname: " + sshServer.getName());
                     keyboardRow.add(inlineKeyboardButton);
                     keyboard.add(keyboardRow);
+                }
+            }
         });
 
-        if (sshService.getSshServers().size() > 1) {
+        if (keyboard.size() > 1) {
             List<InlineKeyboardButton> keyboardRow = new ArrayList<>();
             InlineKeyboardButton inlineKeyboardButton = new InlineKeyboardButton();
             inlineKeyboardButton.setText("Все сервера");

src/main/resources/application.yml

@@ -1,6 +1,27 @@
+spring:
+  application:
+    name: ServerMonitorBot
+  datasource:
+    url: jdbc:postgresql://localhost:5432/servermonitorbot
+    username: servermonitorbot
+    password: servermonitorbot
+  jpa:
+    hibernate:
+      ddl-auto: none
+  liquibase:
+    enabled: true
+    change-log: classpath:db/scripts/changelog-master.xml
+    url: jdbc:postgresql://localhost:5432/servermonitorbot
+    user: servermonitorbot
+    password: servermonitorbot
+    liquibase-schema: "liquibase"
+    default-schema: "servermonitorbot"
 bot:
   name: "ServerMonitorBot"
   token: "token"
+  users:
+    - telegramId: 123456789
+      role: admin
 ssh:
   servers:
     -

src/main/resources/db/scripts/changelog-master.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.1.xsd">
+
+    <include file="release_0_0_1/changelog.xml" relativeToChangelogFile="true"/>
+
+
+</databaseChangeLog>

src/main/resources/db/scripts/release_0_0_1/changelog.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.1.xsd">
+
+    <include file="scripts/01_create_table_users.sql" relativeToChangelogFile="true"/>
+    <include file="scripts/02_create_table_roles.sql" relativeToChangelogFile="true"/>
+    <include file="scripts/03_add_FK_users_to_roles.sql" relativeToChangelogFile="true"/>
+    <include file="scripts/04_add_roles.sql" relativeToChangelogFile="true"/>
+    <include file="scripts/05_add_anonymous_role.sql" relativeToChangelogFile="true"/>
+    <include file="scripts/06_refactor_users_table.sql" relativeToChangelogFile="true"/>
+    <include file="scripts/07_refactor_roles_table.sql" relativeToChangelogFile="true"/>
+    <include file="scripts/08_add_roles.sql" relativeToChangelogFile="true"/>
+
+</databaseChangeLog>

src/main/resources/db/scripts/release_0_0_1/scripts/01_create_table_users.sql

@@ -0,0 +1,17 @@
+--liquibase formatted sql
+
+--changeset L_DelOff:create_table_users rollbackSplitStatements:true
+--comment: Создание таблицы пользователей
+CREATE TABLE users
+(
+    id       SERIAL        PRIMARY KEY,
+    login    VARCHAR(128),
+    id_role  integer
+);
+
+COMMENT ON TABLE users IS 'Пользователи';
+COMMENT ON COLUMN users.id IS 'Идентификатор пользователя';
+COMMENT ON COLUMN users.login IS 'Логин пользователя';
+COMMENT ON COLUMN users.id_role IS 'Ссылка на роль пользователя';
+
+--rollback DROP TABLE users;

src/main/resources/db/scripts/release_0_0_1/scripts/02_create_table_roles.sql

@@ -0,0 +1,15 @@
+--liquibase formatted sql
+
+--changeset L_DelOff:create_table_roles rollbackSplitStatements:true
+--comment: Создание таблицы ролей
+CREATE TABLE roles
+(
+    id       SERIAL        PRIMARY KEY,
+    role    VARCHAR(128)
+);
+
+COMMENT ON TABLE roles IS 'Пользователи';
+COMMENT ON COLUMN roles.id IS 'Идентификатор пользователя';
+COMMENT ON COLUMN roles.role IS 'Логин пользователя';
+
+--rollback DROP TABLE roles;

src/main/resources/db/scripts/release_0_0_1/scripts/03_add_FK_users_to_roles.sql

@@ -0,0 +1,2 @@
+ALTER TABLE users
+ADD COLUMN role_id INT NOT NULL REFERENCES roles(id);

src/main/resources/db/scripts/release_0_0_1/scripts/04_add_roles.sql

@@ -0,0 +1,2 @@
+INSERT INTO roles (id, role) VALUES (1, 'ADMIN');
+INSERT INTO roles (id, role) VALUES (2, 'USER');

src/main/resources/db/scripts/release_0_0_1/scripts/05_add_anonymous_role.sql

@@ -0,0 +1 @@
+INSERT INTO roles (id, role) VALUES (3, 'ANONYMOUS');

src/main/resources/db/scripts/release_0_0_1/scripts/06_refactor_users_table.sql

@@ -0,0 +1,9 @@
+ALTER TABLE users
+    DROP COLUMN login;
+
+ALTER TABLE users
+    ADD COLUMN telegram_id INTEGER UNIQUE;
+    COMMENT ON COLUMN users.telegram_id IS 'Telegram ID пользователя';
+
+ALTER TABLE users
+    DROP COLUMN id_role;

src/main/resources/db/scripts/release_0_0_1/scripts/07_refactor_roles_table.sql

@@ -0,0 +1,6 @@
+ALTER TABLE roles
+    DROP COLUMN role;
+
+ALTER TABLE roles
+    ADD COLUMN name VARCHAR(128);
+COMMENT ON COLUMN roles.name IS 'Имя роли';

src/main/resources/db/scripts/release_0_0_1/scripts/08_add_roles.sql

@@ -0,0 +1,4 @@
+TRUNCATE TABLE roles CASCADE;
+INSERT INTO roles (id, name) VALUES (1, 'ADMIN');
+INSERT INTO roles (id, name) VALUES (2, 'USER');
+INSERT INTO roles (id, name) VALUES (3, 'ANONYMOUS');